design of post tension slabs on grade type ii



Related Information:

By BRIAN M JUEDES - post-tensioningorg

The recommended design procedure for BRAB Type I and Type II slabs is intended to provide a minimum prestress force of 005A after all losses, including the effects of subgrade friction The tendon spacing (in feet) required to provide the minimum prestress force at the plan center of Type II uniform thickness slabs with a unit...

Read More
Post - Tensioned Concrete Design For ACI 318-08

A 2 2Area 2 A' c 2 2 Post-Tensioned Concrete Design Table 1-1 List of Symbols Used in the ACI 318-08 Code cp Area enclosed by the outside perimeter of the section, in A g Gross area of concrete, in A 2 l Total area of longitudinal reinforcement to resist torsion, in A o Area enclosed by the shear flow path, sq-in A oh Area enclosed by the centerline of the outermost closed...

Read More
Post Tension Slab: Defination, Advantages & Problems

Advantages of post tension slab: 1 Vastu Benefits: Post tension slabs have is an environment-friendly base for flooring design with thin slabs and column fewer spaces in larger slabs This provides an architect the freedom to work independently with their designs 2...

Read More
GRDSLAB - Concrete Slab on Grade Analysis Spreadsheet

Jan 09, 2017· The "Slab on Grade" worksheet assumes a structurally unreinforced slab, ACI-360"Type B", reinforced only for shrinkage and temperatureAn interior load condition is assumed for flexural analysisThat is, the concentrated post or wheel load is assumed to be well away from a "free" slab edge or cornerThe original theory and equations by HM ....

Read More
1 Post-Tensioned Concrete

11 History of Post-Tensioning Post-Tensioning is a method of prestressing Concrete is weak in tension PT increases concrete‟s ability to perform under tensile stress Tendons are tensioned after the concrete is poured 1928: Modern Prestressed Concrete “invented” 1946: Post-Tensioning gained momentum in Europe due to steel shortage...

Read More
Comparison between Post Tension and Hollow Core Slabs ,

foundations were kept as original design 2 SLAB SYSTEM: In the view of the type of the structure and the general trend of construction the possible alternatives for the floor slab system are as follows: • Hollow Core Pre cast slab supported on PT & RC beams • Post-tension cast-in place slab supported on PT & RC beams...

Read More
DESIGN OF STIFFENED SLABS-ON- GRADE ON SHRINK ,

jl briaud –texas a&m university •some fundamental remarks •the problem •the solutions (foundations, designs) •development of the design method –equation for shape of soil surface (flex cover) –maximum water tension related to weather –max moment and deflection when slab on soil –parametric study –design chart development •case history...

Read More
when to use PT slab-on-grade? - Concrete Engineering ,

Feb 19, 2008· I did the post tension design for tract homes in California, Nevada and Arizona I use the PTI software to design and all the building departments from three states have accepted the design Basically, you can design 5" slab with rib beams spacing about 12'-15' apart or you can design 10" mat slab without footing...

Read More
COST ANALYSIS OF TWO-WAY SLAB AND POST TENSION ,

slab for the study The post tension slab is designed as per IS1343-1987 [04] and two-way slab is designed as per IS456:2000 [05] The loads are taken as per IS875(part-2)-1987 [06] and the cost estimation between these slabs is conducted The design of post tension slab is presented below Design of a Post tension slab =5 m, =938m...

Read More
The New and Improved Slab-on-Ground Design Manual

Slab-on-Ground Design Manual BY KENNETH B BONDY After a highly successful first run, Design and Construction of Post-Tensioned Slabs-on-Ground is extensively revised A crew at work on a post-tensioned slab on ground For the slab to function properly and resist subgrade movement, it must be well designed and constructed...

Read More
Post-Tensioned One-Way Slab

Post-Tension Analysis (Shear strength) Using the shear design method found in the PCI Design Handbook Precast and Prestressed Concrete 6th Edition, the shear values were calculated at 3 ft, 8 ft, 12 ft and 18 ft from the support The following graph in Figure 13 was made to show the shear distribution along the post-tensioned slab vci 0 100 ....

Read More
SLAB ON GRADE REINFORCING DESIGN - PDHonline

Post-Tensioned Industrial Floors: The advantages of post-tensioning for industrial floors are: 1 Less concrete, ie reduced slab thickness 2 Reduction or elimination of random cracks 3 Substantial reduction in joints, ie increased spacing of joints Post-tensioning is an active rather than passive form of reinforcing In other words, post-...

Read More
Reported by Committee 302

slabs-on-ground, ACI 223R for shrinkage-compensating concrete floors, and ACI 4211R and 4212R for suspended floors 52—Slabs-on-ground 521 Required design elements—Following are the minimum items that should be addressed in the construction documents prepared by the designer (ACI 360R): a) Slab-on-ground design criteria...

Read More
Criteria for Selection and Design of Residential Slabs-on ,

6 RESIDENTLA L SLABS ON GROUND Once the site characteristics have been ascertained and type of superstructure construction (frame, masonry, etc) of a residence has been set, slab type selection and/or design for Herpes I, II, and III proceeds, in terms of ,...

Read More
Post-Tensioned, Reinforced Concrete Slab Design Software – ,

Concrete Slab Design Software Economically design post-tensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality Design floors and foundations reliably and efficiently, saving time and money, and overcoming the most common concerns you face as a designer...

Read More
Addendum No 2 to the 3rd Edition of the Design of Post ,

Addendum No 2 to the 3rd Edition of the Design of Post-Tensioned Slabs-on-Ground 8601 N Black Canyon Highway Suite 103 Phoenix, Arizona 85021 Telephone: (602) 870-7540 Fax: (602) 870-7541 Website: post-tensioningorg May 2008...

Read More
Post Tension Slab - Working Principle, Components and ,

Advantages of Post Tension Slab 1 Architectural Benefits Post-Tensioned Slab has an advantage over others as it makes a very efficient base for floor design with thin slabs and columnless spaces in larger spans It provides an architect the freedom to work freely with his designs 2 Commercial Spaces...

Read More
Do basements have post-tension slabs? - GreenBuildingAdvisor

Feb 25, 2020· Post-tensioned slab on grade construction is one of the more common methods for residential construction The need for post-tensioning is due to the soils under the slab swelling and shrinking seasonally, as the clay wets and dries with weather chang The moisture content of the soils outside the foundations do influence the moisture content ....

Read More
Podium Slab Design Example - PT Structures

The upper four levels are residential The ground level is parking A post-tensioned podium slab separate the parking below from the light residential framing above S12 Geometry The post-tensioned podium slab, the supporting concrete walls and columns, along with the ground-supported mat foundation form an integrated concrete box that ....

Read More
when to use PT slab-on-grade? - Concrete Engineering ,

Feb 19, 2008· I did the post tension design for tract homes in California, Nevada and Arizona I use the PTI software to design and all the building departments from three states have accepted the design Basically, you can design 5" slab with rib beams spacing about 12'-15' apart or you can design 10" mat slab without footing...

Read More
Optimum design of post-tensioned flat slabs with its ,

The design code provisions stated for each element in the structure are taken as design constraints The 37 design constraints considered in the optimization process are divided into two groups: post-tension slab constraints and reinforced concrete column constraints 231 Post-tensioned slab constraints...

Read More
360R-06 Design of Slabs-on-Ground - NICFI

Chapter 9—Design of post-tensioned slabs-on-ground, p 360R-36 91—Notation 92—Definitions 93—Introduction 94—Applicable design procedures 95—Slabs post-tensioned for crack control 96—Industrial slabs with post-tensioned reinforcement for structural support 97—Residential slabs with post-tensioned reinforcement for ....

Read More
Post-Tensioning Institute >Education >Publications >PTI ,

M Chusid, “1200-Foot Post-Tensioned Slab with Type K Cement Cleared for Take-Off: 19 Years After Placement of Demonstration Pavements, Post-Tensioned Design Shows Best Performance” D Beiler, “Meadowview Oxidation Ditch WWTP” K Bondy, “Post-Tensioned Concrete in Buildings Past and Future: An Insider’s View”...

Read More
Post Tension v Conventional | C|P|H Structural Engineering ,

I saw a post tension foundation before they poured concrete and there was not enough reinforcement in it TECHNICAL INFO The above discussion is concerning slab-on-grade foundation construction This type of foundation is classified as a “shallow” foundation system and subject to the movements of the near surface soils...

Read More
POST-TENSIONED IN BUILDINGS

Post-tensioning in buildings is not limited to floor slabs Post-tensioning of foundations, transfer beams and plates, post-tensioned masonry and the combination of precast elements with cast-in-place concrete by means of post-tensioning offer other interesting opportuniti Developers, architects, engineers, contractors, educators and ....

Read More
STRUCTURAL ENGINEERING CASE STUDY REPORT: Wafflemat Slab ,

The current trend for the Residential (single and multi-family) housing market in Colorado: foundations once constructed on Post-Tensioned Slabs (ribbed and California-Type slabs) with the new requirements for specifying design values are becoming so cost prohibitive that builders in the Denver market are looking at going back to conventional ....

Read More
Post Tension Slab – Advantages and Disadvantages of Post ,

Jan 24, 2015· Disadvantages of the post tension slab Here are a few disadvantages of post tension slabs: 1 Since there are a number of tendons and wires spread inside the post tension slab, it can result in corrosion But largely, this tendency to corrode depends on the quality of the material used 2...

Read More
Post Tension Slab-on-Grade Foundation - EVstudio

Apr 19, 2019· PT Slab-on-grade, concrete slab not shown to see tendons A Post Tension (PT) slab-on-grade (SOG) foundation is based on a typical raft SOG foundation with one major difference; high strength steel tendons pulled into tension Tendons are typically ½” diameter made of 7 steel wire strands that is then greased and encased in a plastic coating...

Read More
University of Houston Master Construction Specifications ,

12 SCOPE OF WORK A The post-tensioning supplier and installer shall furnish all labor, materials, services and equipment required to produce a complete post-tensioned structural system The work shall include the following items: 1 Furnishing all post-tensioning ,...

Read More
Post-Tension Products

Designed to support 1/2" diameter strand in post tensioning slabs; Excellent for post-tension slab-on-grade applications; Intersectional Chairs saves time and money; Holds cable from both directions; Tips hold chairs securely in place ; Pocket Formers Paragon’s Pocket Formers are available in 15” - 2,...

Read More